Dispêndio energético da produção de milho em diferentes tecnologias na safra 2005/2006.

Abstract

This work evaluated the cost energy of the maize production of in the state of São Paulo, harvest 2005/2006 for two technological systems: conventional tillage and no tillage. From the matrix of coefficients technician made by the Institute Agricultural Economics, about information supplied for manufacturers machines and equipment and bibliographical sources. The total energy spend in the no tillage system is 30% minor who in the conventional tillage system. Other advances in the reduction of the energy cost had must come from the substitution by the chemical fertilizers nutrients for organic seasonings, rotation and/or trust of leguminous as well as for the use of biodiesel.